You know what? Those colorless HDPE milk and water bottles actually have a lot of origins! They are usually made of high-quality, low melt index HDPE homopolymers without adding any pigments. This design allows them to be widely utilized after recycling.
The recycling system usually accepts these colorless HDPE bottles because they are not included in the deposit recycling system, so although their recycling rate is only 3.4%, it is already quite good. In contrast, the recycling rate of PET soft drink bottles is as high as 35.4%.
It is worth mentioning that both colored and colorless HDPE bottles can be accepted by most recycling systems through extrusion blow molding. This material is highly favored due to its high melt flowability.
However, some containers, such as motor lubricant bottles, containers containing corrosive cleaning agents, insecticides, or other materials that may pose a threat to the performance of the final product, are usually not accepted by recycling programs because they are annoying impurities.
So, the next time you see colorless HDPE bottles, you may want to think about their importance in recycling. Let's contribute to environmental protection together!
